Enhanced effect of adsorption and photocatalytics by TiO2 nanoparticles embedded porous PVDF nanofiber scaffolds

By electrospinning and the following electrospraying, porous polyvinylidene fluoride nanofiber scaffolds with the embedded titanium dioxide (TiO 2 ) nanoparticles were fabricated to improve the adsorption and photocatalytic performance. Adsorption experiments to MB showed the best adsorption capacit...

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Bibliographic Details
Published in:Journal of materials research 2021-04, Vol.36 (7), p.1538-1548
Main Authors: Gao, Jingru, Jia, Shuyue, Liu, Jia, Sun, Zhaojie, Yang, Xu, Tang, Dongyan
Format: Article
Language:English
Subjects:
Adsorption
Applied and Technical Physics
Biomaterials
Chemistry and Materials Science
Embedding
Inorganic Chemistry
Materials Engineering
Materials research
Materials Science
Nanofibers
Nanoparticles
Nanotechnology
Performance degradation
Photocatalysis
Photodegradation
Pollutants
Polyvinylidene fluorides
Scaffolds
Titanium dioxide
Wastewater treatment
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Summary:By electrospinning and the following electrospraying, porous polyvinylidene fluoride nanofiber scaffolds with the embedded titanium dioxide (TiO 2 ) nanoparticles were fabricated to improve the adsorption and photocatalytic performance. Adsorption experiments to MB showed the best adsorption capacity of the scaffolds with the value of 46.87 mg/g. The photocatalytic degradation performance of the composite nanofibers was directly proportional to the embedded amounts of the nanoparticles. Moreover, the introduction of the porous and the embedding of the photocatalytic nanoparticles contributed the synergetic effects by improving the adsorption capacity to 85.70 mg/g within relative short period of time, and so the photocatalytic efficiency of TiO 2 was enhanced and the energy requirement of photocatalysis was reduced to some extent. Through fourth cycles of the adsorption and the photocatalytic experiments, the nanofibers showed relative excellent recycling performances (> 89.5%). Thus, the composite nanofibers would be the potential effective and stable ones to remove pollutants from wastewater or other circumstances. Graphic abstract
ISSN:0884-2914
2044-5326
DOI:10.1557/s43578-021-00181-x